Quantum Entanglement Dynamics of Two Atoms in Quantum Light Sources

作     者：杨榕灿 李杰 王军民 张天才 

作者机构：State Key Laboratory of Quantum Optics and Quantum Optics DevicesInstitute of Opto-ElectronicsShanxi University School of Physics and Opto-Electronics TechnologyFujian Normal University 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2011年第56卷第9期

页      面：429-434页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos. 10974125, 60978017, and 60821004 in part by the Educational Committee of Fujian Province (JA09041) Fujian Normal University (2008100220) 

主　　题：quantum entanglement dynamics concurrence squeezed vacuum state sudden death 

摘      要：Quantum entanglement dynamics of two Tavis-Cummings atoms interacting with the quantum light sourcesin a cavity is *** results show the phenomenon that the concurrence disappears abruptly in a finite time,which depends on the initial atomic states and the properties of squeezed *** find that there are two decoherencefreestates in squeezed vacuum fields:one is the singlet state,and the other entangled state is the state that combinesboth excited states and ground states with a relative phase being equal to the phase of the squeezed state.